Atletico Madrid midfielder Tiago is eyeing a return to the Premier League.
The former Portugal international has struggled to hold down a regular place in the Atletico side this season, making just nine appearances.
The news of his possible availability has alerted a number of clubs who are ready to offer the midfielder a second crack in England, says Sky Sports.
Tiago impressed during his one season at Chelsea, making 52 appearances in all competitions and helping the club win the Premier League title.